<template>
  <el-row :gutter="40" class="panel-group">
    <el-col :xs="12" :sm="12" :lg="6" class="card-panel-col">
      <div v-if="loading" class="card-panel">
        <el-skeleton :rows="4" animated />
      </div>
      <div v-else class="card-panel" @click="handlePanelData('member')">
        <div class="card-panel-icon-wrapper icon-people">
          <svg-icon icon-class="peoples" class-name="card-panel-icon"/>
        </div>
        <div class="card-panel-description">
          <div class="card-panel-text">
            月会员数
          </div>
          <count-to :start-val="0" :end-val="data.month_member" :duration="2600" class="card-panel-num"/>
        </div>
      </div>
    </el-col>
    <el-col :xs="12" :sm="12" :lg="6" class="card-panel-col">
      <el-skeleton class="card-panel" :loading="loading" :rows="4" animated>
        <template slot="template">
        </template>
        <template>
          <div class="card-panel" @click="handlePanelData('mmeber')">
            <div class="card-panel-icon-wrapper icon-message">
              <svg-icon icon-class="message" class-name="card-panel-icon"/>
            </div>
            <div class="card-panel-description">
              <div class="card-panel-text">
                年会员数
              </div>
              <count-to :start-val="0" :end-val="data.total_member" :duration="3000" class="card-panel-num"/>
            </div>
          </div>
        </template>
      </el-skeleton>
    </el-col>
    <el-col :xs="12" :sm="12" :lg="6" class="card-panel-col">
      <el-skeleton class="card-panel" :loading="loading" :rows="4" animated>
        <template slot="template">
        </template>
        <template>
          <div class="card-panel" @click="handlePanelData('amount')">
            <div class="card-panel-icon-wrapper icon-money">
              <svg-icon icon-class="money" class-name="card-panel-icon"/>
            </div>
            <div class="card-panel-description">
              <div class="card-panel-text">
                总收益
              </div>
              <count-to :start-val="0" :end-val="data.order_amount" :duration="3200" class="card-panel-num"/>
            </div>
          </div>
        </template>
      </el-skeleton>
    </el-col>
    <el-col :xs="12" :sm="12" :lg="6" class="card-panel-col">
      <el-skeleton class="card-panel" :loading="loading" :rows="4" animated>
        <template slot="template">
        </template>
        <template>
          <div class="card-panel" @click="handlePanelData('article')">
            <div class="card-panel-icon-wrapper icon-shopping">
              <svg-icon icon-class="shopping" class-name="card-panel-icon"/>
            </div>
            <div class="card-panel-description">
              <div class="card-panel-text">
                文章数
              </div>
              <count-to :start-val="0" :end-val="data.total_article" :duration="3600" class="card-panel-num"/>
            </div>
          </div>
        </template>
      </el-skeleton>
    </el-col>
  </el-row>
</template>

<script>
import CountTo from 'vue-count-to'
import {count as apiCount} from '@/api/admin'

export default {
  components: {
    CountTo
  },
  data() {
    return {
      loading: true,
      data: {
        month_member: 0,
        total_member: 0,
        order_amount: 0,
        total_article: 0
      }
    }
  },
  created() {
    this.count()
  },
  methods: {
    count() {
      this.loading = true
      apiCount().then(res => {
        this.data.month_member = res.data.month_member
        this.data.total_member = res.data.total_member
        this.data.order_amount = res.data.order_amount
        this.data.total_article = res.data.total_article
        this.loading = false
      }).catch(() => {
        this.loading = false
      })
    },
    handlePanelData(type) {
      this.$emit('handlePanelDataCallback', type)
    }
  }
}
</script>

<style lang="scss">
.card-panel {
  .el-skeleton {
    padding: 10px;

    .el-skeleton__item {
      height: 12px;
    }

    .el-skeleton__paragraph {
      margin-top: 10px;
    }
  }
}
</style>

<style lang="scss" scoped>
.panel-group {
  margin-top: 18px;

  .card-panel-col {
    margin-bottom: 32px;
  }

  .card-panel {
    height: 108px;
    cursor: pointer;
    font-size: 12px;
    position: relative;
    overflow: hidden;
    color: #666;
    background: #fff;
    box-shadow: 4px 4px 40px rgba(0, 0, 0, .05);
    border-color: rgba(0, 0, 0, .05);

    &:hover {
      .card-panel-icon-wrapper {
        color: #fff;
      }

      .icon-people {
        background: #40c9c6;
      }

      .icon-message {
        background: #36a3f7;
      }

      .icon-money {
        background: #f4516c;
      }

      .icon-shopping {
        background: #34bfa3
      }
    }

    .icon-people {
      color: #40c9c6;
    }

    .icon-message {
      color: #36a3f7;
    }

    .icon-money {
      color: #f4516c;
    }

    .icon-shopping {
      color: #34bfa3
    }

    .card-panel-icon-wrapper {
      float: left;
      margin: 14px 0 0 14px;
      padding: 16px;
      transition: all 0.38s ease-out;
      border-radius: 6px;
    }

    .card-panel-icon {
      float: left;
      font-size: 48px;
    }

    .card-panel-description {
      float: right;
      font-weight: bold;
      margin: 26px;
      margin-left: 0;

      .card-panel-text {
        line-height: 18px;
        color: rgba(0, 0, 0, 0.45);
        font-size: 16px;
        margin-bottom: 12px;
      }

      .card-panel-num {
        font-size: 20px;
      }
    }
  }
}

@media (max-width: 550px) {
  .card-panel-description {
    display: none;
  }

  .card-panel-icon-wrapper {
    float: none !important;
    width: 100%;
    height: 100%;
    margin: 0 !important;

    .svg-icon {
      display: block;
      margin: 14px auto !important;
      float: none !important;
    }
  }
}
</style>
